The Cause Of Your Dry Lips Is Actually Your Lip Balm

If your lips are constantly dry lately, you might be quick to blame it on the weather. With inevitably sore hands and a flaky forehead always comes a chapped mouth, particularly when the temperature plummets.

Whether you're a Carmex person or loyal to Aquaphor, you probably see the cold as your sign to stock up on lip balm (one for every handbag, of course). But if you apply and reapply diligently yet find that your lips are still as dry as the Sahara, you might want to look closely at the product you're using.

Dermatologist Dr. Scott Walter went TikTok-viral in 2022 when he posted a video captioned: "Why your lips always stay chapped." In the clip, Dr. Walter dropped the bombshell that his patients often develop an allergy to certain ingredients featured in popular lip products, which makes their lips stay chapped. Common culprits are menthol (a substance found in mint plants), camphor (a waxy substance from the camphor tree), benzocaine (commonly used as a pain reliever and often found in cough medicine) and beeswax.

It wasn't long before Dr. Walter's followers took to the comments section in disbelief. Surely a product formulated to soothe sore, dry lips wouldn't make them worse? Unfortunately for some, though, that is the case.

"Yes, the ingredients in your lip balm may be the problem and making your lips worse," Dr. Walter tells R29. "If you become allergic to any ingredient in your lip balm, your lips react the same way: chapped, dry and irritated." More often than not, says Dr. Walter, it could be an allergy or irritation from the lip balm ingredients.

Consultant dermatologist and British Skin Foundation spokesperson Dr. Derrick Phillips explains that allergies develop because repeated use of lip balm allows ingredients to penetrate the skin and provoke the immune system. "This causes a localized eczema with dryness, scaling and irritation — similar to the symptoms that led you to use the lip balm in the first place."

It pays to be savvy and check the ingredients list, especially if your lips are prone to chapping and becoming sore. "I recommend avoiding essential oils, fragrances, lidocaine [an ingredient that works like an anesthetic] and beeswax (otherwise known as propolis)," says Dr. Walter. "These have the potential to cause irritation and can lead to developing a contact allergy, even if you've tolerated them well in the past."

Menthol in particular feels nice and cooling on lips, initially soothing any irritation, explains Dr. Walter, but it evaporates quickly and can lead to increased dryness. Dr. Walter adds that some ingredients like alcohol can also increase transepidermal water loss (where you lose moisture from the skin) and dry out your lips even further. 

If you find yourself applying lip balm on the hour, every hour, it might be time to switch things up.

Dr. Walter says that the ideal lip balm should feature two types of ingredients: humectants (such as hyaluronic acid and glycerin, which draw moisture into the skin) and emollients (like petrolatum, squalane, shea butter and coconut oil, which keep moisture under lock and key in the skin).

Here's the thing, though. Without subjecting you to a chemistry lesson, humectant ingredients must be teamed with emollient ingredients to make an effective lip balm. You can have one without the other but it's unlikely you'll get the results you want: plump, smooth, well-moisturized lips.

In Dr. Phillips' opinion, nothing beats petroleum jelly. "This is the key ingredient in Vaseline and it acts as an occlusive, locking in moisture and preventing chapped, dry lips." Dr. Phillips says that shea butter and cocoa butter are also great ingredients to look out for in lip care. "They contain fatty acids and vitamins which provide moisture and an anti-inflammatory action."

Dr. Adil Sheraz, consultant dermatologist and British Skin Foundation spokesperson, says glycerin is an effective ingredient and also pinpoints paraffin, a very commonly used moisturizing ingredient in lip care. The key, though? Making sure your lip balm is fragrance-free, as perfume can be notoriously irritating and drying.

Dermatologists often recommend Eucerin Dry Skin Calming Lip Balm. It's fragrance-free and includes star ingredients glycerin (a humectant) and shea butter (an emollient). Also try R29 favorite Palmer's Cocoa Butter Formula Cocoa Butter Lip Balm, which combines cocoa butter with paraffin and a handful of smoothing, plumping oils. You might also like Lanolips 101 Ointment, Vaseline Cocoa Butter Petroleum Jelly and Dr. PawPaw Ultimate Red Balm with petrolatum and olive oil.

Dr. Walter says that applying lip balm two to three times a day should be enough for most people if the lip balm you're using is actually effective.

You might be tempted to lick dry lips but this is a no-go. "Try to avoid constantly licking your lips," says Dr. Walter. "Saliva evaporates quickly and then dries out your lips even further." Dr. Phillips adds that lip licking only encourages excessive use of lip balm so you could be going around in circles. "Secondly," says Dr. Walter, "try doing a DIY lip mask before going to bed," otherwise known as lip slugging. "Apply your favorite hyaluronic acid serum [you might want to try this on damp lips] and then lock in the moisture with a thick layer of Vaseline before going to bed."

If you suffer with dry lips due to problems such as eczema, Dr. Sheraz recommends applying lip balm at least twice a day.

If you've done all of the above but your lips aren't getting any better and they're feeling uncomfortable or painful, now might be a good time to visit your primary care doctor or, if you have a beauty budget, a dermatologist. "They can provide advice on what's best to use on your lips and make sure something else isn't going on that is causing them to remain chronically dry," says Dr. Walter. 

"This will help to exclude any contact allergies from lip balm or other skincare ingredients, as well as any other medical causes for dry, inflamed lips," adds Dr. Phillips. Dermatologists can offer you a patch test to help whittle down the ingredients in your products that you might be allergic to, for example.

Lastly, both Dr. Walter and Dr. Sheraz explain that chronic sun damage to your lips can also lead to something called actinic cheilitis, which presents in the same way as constantly chapped lips. We all know about the detrimental effects of too much sun. Actinic cheilitis increases the risk of developing a more serious condition such as skin cancer so if you're experiencing odd changes to your lips or the skin around them, it pays to seek professional advice from a doctor.